If you’re using Ubuntu, don’t install LibreOffice manually from the “.deb” files available at libreoffice.org. Otherwise you will not get automatic updates, upgrades when new versions come out, integration within Ubuntu, and is unsupported for Ubuntu bug filing purposes. Using official packages also ensures you get the best assistance from the community as this is the recommended method to install and use LibreOffice in Ubuntu.

To install proper support for language writing aids you may install the corresponding packages libreoffice-l10n-*, myspell-*, hyphen-*, mythes-*, libreoffice-help-* followed by your language ISO 639-1 code. A complete list of such language codes is available at: http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes

For example, the corresponding French packages are:

libreoffice-l10n-fr

myspell-fr

hyphen-fr

mythes-fr

libreoffice-help-fr

Please be advised that not all languages have these corresponding packages. For more information on language support in LibreOffice please check here.